Thanks for the quick reply … I’m assuming the User Avatar plugin you’re using is this one? If so, then I hold my hands up and admit that I’ve not come across this plugin before and as a result not been able to do any compatibility testing.
My plugin certainly adds to the fields available as part of a user’s profile but from looking at my code I can’t see how the two plugins would interact in such a way as to either delete the avatars or to remove any references to them.
From a quick look at the User Avatar plugin, can you tell whether the avatars are still present in /wp-content/uploads/avatars?
Also, while there doesn’t appear to be a clash between any hooks that the two plugins register, it’s interesting that the User Avatar installs a filter to override the default get_avatar()
function to plug the user uploaded images in instead of using the Gravatar, but even then I can’t see why you’re experiencing what you’re experiencing.
Hmmm … more homework and investigation needed here I think.